橡胶合金SG-301对天然橡胶/丁腈橡胶阻尼材料性能的影响  

Effects of rubber alloy SG-301 on properties of natural rubber/nitrile rubber damping materials

作　　者：王建功[1] 任慧 王树杰 魏继军 逯祥洲 薛美玲[1] WANG Jian-gong, REN Hui, WANG Shu-jie, WEI Ji-jun, LU Xiang-zhou, XUE Mei-ling(College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《合成橡胶工业》2018年第6期420-424,共5页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(51673104;51173089);山东省重点研发计划资助项目(2015GGX102002)

摘　　要：考察了橡胶合金SG-301对天然橡胶(NR)/丁腈橡胶(NBR)共混胶硫化特性、物理机械性能、压缩生热以及阻尼性能的影响。结果表明,随着SG-301用量的增加,NR/NBR共混胶的最小转矩、最大转矩及转矩差值均逐渐增大,焦烧时间和正硫化时间基本没有变化,拉伸强度、撕裂强度和扯断伸长率均先增大后减小,当SG-301用量为5份时达到最大值,同时,100%定伸应力、300%定伸应力、邵尔A硬度、压缩永久变形和疲劳温升均逐渐增大,回弹性逐渐下降,且两相的损耗峰逐渐靠近,损耗因子峰值均逐渐减小,损耗模量逐渐增大,室温以上温度时的损耗因子逐渐增大。The effects of the curing characteristics, rubber alloy mechanical SG-301 on properties, compression fatigue heat build-up and damping properties of natural rubber （NR）/uitrile rubber （NBR） blends were investigated. The results showed that with increasing SG-301 amount, the minimum torque, maximum torque and torque difference of NR/NBR compounds increased, scorching time and optimum cure time changed little basically, and the tensile strength, tear strength and elongation at break increased first and then decreased, the maximum could reach at 5 phr of SG-301. Meanwhile, the modulus at 100% and 300% , Shore A hardness, compression permanent set and tempera- ture rise increased gradually, and the rebound resilience decreased. The loss factor peaks of two phase shifted inward, the maximum loss value of two phase decreased, the loss modulus of two phase increased, while the loss factor at room temperature and higher temperature range increased.

关 键 词：天然橡胶 丁腈橡胶 橡胶合金 相容性 物理机械性能 阻尼性能 

分 类 号：TQ330.38[化学工程—橡胶工业]